Pro Handyman Blog

Replace Garbage Disposal Using The Old Collar?

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Can I replace my garbage disposal but not the old collar that holds it to the sink? It is a pretty common question. The answer is that it depends.

Garbage disposal manufacturers don't do a whole lot in the way of design. After all, the disposal just sits in a cabinet out of sight and it can afford to be ugly...as long as it grinds up food.

For the most part, yes you can leave the old collar in place and just install the new disposal onto it, as long as it is from the same manufacturer as the old unit. For example, if I had a new Insinkerator disposal to replace my old Insinkerator disposal, and the old collar was tight and not leaking, I would feel comfortable doing that. However, if my new disposal was not an Insinkerator, I would replace the collar.

The biggest gripe about replacing the collar is the snap ring. Although it seems like you need 15 hands to get it into the groove, if you start at one end and gradually pull it down, it will eventually snap into place.

Replacing the collar will only add about 10 minutes onto the job and you know that the new disposal will propertly mate up with the new collar.